Question

For the following assertion $\left(A\right)$ and reason $\left(R\right)$, choose the correct option.
$A:$ The apparent depth of a tank of water decreases if viewed from near normal incidence.
$R:$ Real depth decreases if viewed obliquely.

• A. Both assertion and reason are true and reason is a correct explanation of assertion
• B. Both assertion and reason are true and reason is not a correct explanation of assertion
• C. Assertion is true, but reason is false
• D. Assertion is false, but reason is true

Answer 1

The correct option is C Assertion is true, but reason is false

When viewed from top, the apparent depth decreases, because refracted ray bends away from the normal.
However, real depth will remain the same.

Why this question? Caution: It is the apparent depth which gets altered due to refraction, real depth never changes.